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Staphylococcus saprophyticus in the aetiology of nongonococcal urethritis.
  1. B Hovelius,
  2. I Thelin,
  3. P A Mårdh


    The occurrence of Staphylococcus saprophyticus, Chlamydia trachomatis, and Neisseria gonorrhoeae in urethral specimens of 252 men attending a venereal disease clinic was studied. When using a selective broth medium containing novobiocin and nalidixic acid, Staph. saprophyticus was isolated from 20.8% of 178 men with symptoms of urethritis and from 14.9% of 74 men without such symptoms. Staph. saprophyticus was found significantly less often in controls (7.1% of 56) than in the men with symptoms of urethritis. In the 35 men from whom Staph. saprophyticus was recovered more than 10 leucocytes per high power field in urethral smears occurred more often than in those from whom this organism, or either of the other two agents, were not isolated. No differences were found in the symptoms reported by the men harbouring Staph. saprophyticus or C. trachomatis or those with negative cultures. The results of the present study tend to suggest that Staph. saprophyticus is the aetiological agent of some cases of nongonococcal urethritis.

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